Please give real answers with an explaination. 70 points + I will follow. No Docs/No Files/No Links only answer with explaination.

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bhadelsimron19 bhadelsimron19 · Answer 1 · 2021-06-21T19:51:38+02:00

Answer:

second option

Step-by-step explanation:

find angle c

angle a + angle c = 110 degree (sum of two interior opposite angle is equal to the exterior angle formed )

70 + angle c = 110

angle c = 110 - 70

angle c = 40 degree

find angle b

angle a + angle b + angle c = 180 degree (sum of interior angle of a triangle)

70 + angle b + 40 = 180

angle b + 110 = 180

angle b = 180 - 110

angle b = 70 degree

when two sides are equal the triangle can be named as isosceles triangle.

sreedevi102 sreedevi102 · Answer 2 · 2021-06-21T19:54:12+02:00

Answer:

option B

Step-by-step explanation:

∠ABD + ∠ABC = 180° [ straight line angle ]

110° + ∠ABC = 180°

∠ABC = 180 - 110 = 70°

option A : False

Option B : True,

Since two angles are same, the given triangle is isosceles.

option C : False

Nothing mentioned about the sides in the figure. Though it is isosceles

it does not mention anything about sides.

If two angles of a triangle are congruent,

then the sides opposite those angles are congruent.

That is , AC = BC

Option D : False, Because only B satisfies.